{"product_id":"enginetech-engine-premium-piston-ring-complete-set-m41258-std-for-4-125-inch-diameter-engines","title":"Enginetech Engine Premium Piston Ring Complete Set M41258-STD for 4.125-Inch Diameter Engines","description":"\u003cp\u003eEngine Premium Piston Ring Complete Set\n\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eThe Enginetech M41258-STD engine piston ring set is designed for high-performance engine rebuilds, offering reliable sealing and optimal engine efficiency. Crafted with precision, this complete set includes top compression rings, second compression rings, and oil rings, all engineered to meet strict SAE guidelines. The top and second compression rings feature a thickness of 5\/64 inches, providing durability and effective compression, while the oil ring measures 3\/16 inches for excellent oil control. The ring outside diameter is 4.125 inches, ensuring a perfect fit for compatible engine cylinders. Built by Enginetech, a family-owned company operating since 1982, this piston ring set is ideal for both import and domestic engine rebuild projects, whether restoring an older engine or optimizing a performance build.\u003c\/p\u003e\u003cp\u003eConstructed with high-quality materials, the M41258-STD set guarantees consistent end gaps and precise tolerances, which are critical for maintaining optimal compression and preventing blow-by. Enginetech’s commitment to quality ensures that each ring set undergoes rigorous testing to meet industry standards. As a trusted supplier to engine rebuilders nationwide, Enginetech provides parts that are engineered specifically for durability and longevity. This piston ring set is compatible with engines requiring a 4.125-inch ring outside diameter, making it a versatile choice for a range of automotive applications.\u003c\/p\u003e\u003cp\u003eWhether you are restoring a vintage engine or building a performance machine, the Enginetech M41258-STD piston ring set offers dependable performance and easy installation. Designed for professionals and hobbyists alike, this set is a vital component in achieving a properly sealed, efficient, and long-lasting engine. Trust Enginetech’s expertise and commitment to quality to ensure your engine rebuild project is successful, providing peace of mind and excellent engine performance for miles to come.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eTop Compression Ring Thickness: 5\/64 inch for durability and effective sealing\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSecond Compression Ring Thickness: 5\/64 inch for reliable compression\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOil Ring Thickness: 3\/16 inch for efficient oil control\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRing Outside Diameter: 4.125 inches ensuring proper fit\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEngine rebuild compatibility for import and domestic engines\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEngineered for consistent end gaps following SAE guidelines\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eHigh-quality materials designed for longevity and performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIdeal for professional engine rebuilds and performance applications\u003c\/li\u003e\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003eFeatures:\u003ctr\u003e\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbdoy\u003e\n\u003ctr\u003e\u003ctd\u003eTop Compression Ring Thickness: 5\/64 in\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eSecond Compression Ring Thickness: 5\/64 in\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eOil Ring Thickness: 3\/16 in\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRing Outside Diameter: 4.125\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eAaiaid Part Number: BBPTM41258-STD\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Number: M41258-STD\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eBrand Aaia: BBPT\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbdoy\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Enginetech","offers":[{"title":"Default Title","offer_id":47550691475605,"sku":"M41258-STD","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0496\/4266\/8181\/files\/M41258_1.jpg?v=1783651699","url":"https:\/\/mizumoauto.com\/products\/enginetech-engine-premium-piston-ring-complete-set-m41258-std-for-4-125-inch-diameter-engines","provider":"Mizumo Auto","version":"1.0","type":"link"}